What do you use to spread glue into the Domino mortises?

[fshanno]

What does Festool recommend?  What do the demo and training people do?  It's their tool after all.  They should know the best or at least the standard way.  I'm going to pose the question in the ask Festool section.

 

[cpw]

I just run a bead of glue over the edge including the mortise, maybe use the back side of a silicone brush to spread it out.  For the dominos themselves I like to glue them in pairs.  Put a bead of glue on one of them, rub it against another one.  It spreads it out nicely so there is good coverage and not too much squeeze.

 

[RJNeal]

I usually put a dab of glue from the bottle on both sides of a domino and then take a second domino use it to spread it around both dominos. Two dominos ready. No brush.
On more structural strength requirements, I usually use an acid brush in the hole.

 

[HarveyWildes]

If I glue them at all (which I mostly do), I use flux brushes trimmed to about 1/2 length.  However, lots of good ideas in this thread that I might try.